Nissan Maxima. Manual - part 223

BCS

COMBINATION SWITCH OUTPUT CIRCUIT

BCS-39

< DTC/CIRCUIT DIAGNOSIS >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

COMBINATION SWITCH OUTPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000009467072

Regarding Wiring Diagram information, refer to 

BCS-67, "Wiring Diagram"

.

1.

 CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

1. Turn the ignition switch OFF.

2. Disconnect the BCM and combination switch.

3. Check continuity between BCM harness connector and combination switch harness connector.

Does continuity exist?

YES

>> GO TO 2

NO

>> Repair or replace harness.

2.

 CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> GO TO 3

3.

 CHECK BCM INPUT VOLTAGE

1. Connect the BCM and the combination switch connector.

2. Check voltage between BCM harness connector and ground.

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

OUTPUT 1

M18 (A)

51

M28 (B)

12

Yes

OUTPUT 2

52

14

OUTPUT 3

53

5

OUTPUT 4

54

2

OUTPUT 5

50

8

System

BCM

Ground

Continuity

Connector

Terminal

OUTPUT 1

M18

51

No

OUTPUT 2

52

OUTPUT 3

53

OUTPUT 4

54

OUTPUT 5

50

BCS-40

< DTC/CIRCUIT DIAGNOSIS >

[BCM]

COMBINATION SWITCH OUTPUT CIRCUIT

Is the measurement normal?

YES

>> Replace BCM. Refer to 

BCS-79, "Removal and Installation"

.

NO

>> Replace the combination switch. Refer to 

EXL-160, "Removal and Installation"

 (xenon type) or

EXL-324, "Removal and Installation"

 (halogen type).

Special Repair Requirement

INFOID:0000000009467073

1.

 REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to 

BCS-5, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) :

Description"

.

>> Work end.

System

Terminals

Voltage

(Approx.)

(+)

(-)

BCM

Ground

Connector

Terminal

INPUT 1

M19

95

Refer to 

BCS-46, "Physical 

Values"

.

INPUT 2

97

INPUT 3

76

INPUT 4

96

INPUT 5

75

BCS

BCM (BODY CONTROL MODULE)

BCS-41

< ECU DIAGNOSIS INFORMATION >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

ECU DIAGNOSIS INFORMATION

BCM (BODY CONTROL MODULE)

Reference Value

INFOID:0000000009467074

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II

User Guide for additional information.

• Activate and display TPMS transmitter IDs

• Display tire pressure reported by the TPMS transmitter

• Read TPMS DTCs

• Register TPMS transmitter IDs

• Check Intelligent Key relative signal strength

• Confirm vehicle Intelligent Key antenna signal strength

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

FR WIPER HI

Other than front wiper switch HI

OFF

Front wiper switch HI

ON

FR WIPER LOW

Other than front wiper switch LO

OFF

Front wiper switch LO

ON

FR WASHER SW

Front washer switch OFF

OFF

Front washer switch ON

ON

FR WIPER INT

Other than front wiper switch INT

OFF

Front wiper switch INT

ON

FR WIPER STOP

Front wiper is not in STOP position

OFF

Front wiper is in STOP position

ON

INT VOLUME

Wiper intermittent dial is in a dial position 1 - 7

Wiper intermittent dial position

TURN SIGNAL R

Other than turn signal switch RH

OFF

Turn signal switch RH

ON

TURN SIGNAL L

Other than turn signal switch LH

OFF

Turn signal switch LH

ON

TAIL LAMP SW

Other than lighting switch 1ST and 2ND

OFF

Lighting switch 1ST or 2ND

ON

HI BEAM SW

Other than lighting switch HI

OFF

Lighting switch HI

ON

HEAD LAMP SW 1

Other than lighting switch 2ND

OFF

Lighting switch 2ND

ON

HEAD LAMP SW 2

Other than lighting switch 2ND

OFF

Lighting switch 2ND

ON

PASSING SW

Other than lighting switch PASS

OFF

Lighting switch PASS

ON

AUTO LIGHT SW

Other than lighting switch AUTO

OFF

Lighting switch AUTO

ON

FR FOG SW

Front fog lamp switch OFF

OFF

Front fog lamp switch ON

ON

DOOR SW-DR

Driver door closed

OFF

Driver door opened

ON

BCS-42

< ECU DIAGNOSIS INFORMATION >

[BCM]

BCM (BODY CONTROL MODULE)

DOOR SW-AS

Passenger door closed

OFF

Passenger door opened

ON

DOOR SW-RR

Rear door RH closed

OFF

Rear door RH opened

ON

DOOR SW-RL

Rear door LH closed

OFF

Rear door LH opened

ON

DOOR SW-BK

Trunk door closed

OFF

Trunk door opened

ON

CDL LOCK SW

Other than power door lock switch LOCK

OFF

Power door lock switch LOCK

ON

CDL UNLOCK SW

Other than power door lock switch UNLOCK

OFF

Power door lock switch UNLOCK

ON

KEY CYL LK-SW

Other than driver door key cylinder LOCK position

OFF

Driver door key cylinder LOCK position

ON

KEY CYL UN-SW

Other than driver door key cylinder UNLOCK position

OFF

Driver door key cylinder UNLOCK position

ON

HAZARD SW

When hazard switch is not pressed

OFF

When hazard switch is pressed

ON

REAR DEF SW

When rear window defogger switch is pressed

ON

TR CANCEL SW

Trunk lid opener cancel switch OFF

OFF

Trunk lid opener cancel switch ON

ON

TR/BD OPEN SW

Trunk lid opener switch OFF

OFF

While the trunk lid opener switch is turned ON

ON

TRNK/HAT MNTR

Trunk lid closed

OFF

Trunk lid opened

ON

RKE-LOCK

When LOCK button of Intelligent Key is not pressed

OFF

When LOCK button of Intelligent Key is pressed

ON

RKE-UNLOCK

When UNLOCK button of Intelligent Key is not pressed

OFF

When UNLOCK button of Intelligent Key is pressed

ON

RKE-TR/BD

When TRUNK OPEN button of Intelligent Key is not pressed

OFF

When TRUNK OPEN button of Intelligent Key is pressed

ON

RKE-PANIC

When PANIC button of Intelligent Key is not pressed

OFF

When PANIC button of Intelligent Key is pressed

ON

RKE-P/W OPEN

When UNLOCK button of Intelligent Key is not pressed and held

OFF

When UNLOCK button of Intelligent Key is pressed and held 

ON

RKE-MODE CHG

When LOCK/UNLOCK button of Intelligent Key is not pressed and 
held simultaneously

OFF

When LOCK/UNLOCK button of Intelligent Key is pressed and held 
simultaneously

ON

OPTICAL SENSOR

When outside of the vehicle is bright

Close to 5 V

When outside of the vehicle is dark

Close to 0 V

REQ SW -DR

When front door request switch is not pressed (driver side)

OFF

When front door request switch is pressed (driver side)

ON

REQ SW -AS

When front door request switch is not pressed (passenger side)

OFF

When front door request switch is pressed (passenger side)

ON

Monitor Item

Condition

Value/Status